大豆有根瘤固氮，相当于给土地施有机氮肥，套种玉米或是小麦可以提高其产量

来源: 天青水蓝于 2025-11-07 18:02:50 [博客] [旧帖] [给我悄悄话] 本文已被阅读：次

WENXUECITY.COM does not represent or guarantee the truthfulness, accuracy, or reliability of any of communications posted by other users.